Aside from women’s hockey at the Olympics, I don’t follow the sport, so I’m happy to depend on the educated opinions of those who do. Colby Cosh points out that the debate over blows to the head in hockey should concentrate on a simple, clearly defined rule:

A memo to those who are concerned with (hitherto) legal checks to the head in the NHL: I sure hope you’re not just fighting physics. Because you’ll lose.

I see nothing wrong with the proposed new rule against blind-side hits to the head. I’d be willing to take it even further, and adopt an easy-to-apply strict-liability standard; if you hit somebody in a way that induces unconsciousness, or causes a concussion, you sit out the next n games. This would spare us from adopting hard-to-apply rules whose enforcement might ebb and crest, vary between personalities, and differ between leagues and regions. (It would occasionally lead, like all strict-liability rules, to unfair-seeming results and punishments for actions that didn’t look unjust or vicious aside from the outcome. But almost anything is better, at least to my mind, than a rule defined by excessively complex language, taught by means of intuitive references to a mass of individual cases, and left to evolve so that everybody thinks he knows the offence when he sees it.)

[. . .]

It’s sometimes observed, for example, that the players are bigger and the game faster than 20 or 30 years ago. But nobody ever sorts out the relative importance of these effects; a player whose mass is 5% bigger has 5% more kinetic energy in open ice, but if his velocity is increased 5%, the energy varies according to the square, and thus increases by more than 10%. If you watch early ’80s hockey, what immediately strikes you, once you get past the sheer horribleness of the goaltending, is the relative slowness of the game. There’s no one reason for this: plenty of things have changed just a little bit, from the quality of icemaking to skate technology to the way skaters are trained. And the change isn’t that extreme, or else Chris Chelios, who actually played early ’80s hockey in the early ’80s, would be unable to draw a paycheque in his weak-bladder years. Still, it’s a factor with exponential weight.

Chris Chelios is nearly as ancient as I am . . . it’s utterly amazing that he’s still able to play at a professional level.